Primary energy use by source in Iceland
Iceland: Primary energy use by source was 0.9184 terawatt-hours in 2025. ◆ Volatile
Latest (2025)
0.9184 terawatt-hours
Change on year
down 26.7%
World rank
67th
of 79 countries
All-time high
1.36 terawatt-hours
in 2021
All-time low
0.0021 terawatt-hours
in 1978
Years of data
61
1965–2025
Primary energy use by source in Iceland, 1965–2025
Source: Energy Institute – Statistical Review of World Energy (2026); Smil (2017) – with major processing by Our World in Data. Measured in terawatt-hours.
Analysis
In 2025, primary energy use by source in Iceland stood at 0.9184 terawatt-hours.
That represents a change of down 26.7% on the previous year and down 20.5% over ten years.
Over the whole period, primary energy use by source in Iceland peaked at 1.36 terawatt-hours in 2021 and was at its lowest, 0.0021 terawatt-hours, in 1978.
That places Iceland 67th out of 79 countries with data for 2025, putting it in the bottom quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Primary energy use by source in Iceland, year by year
| Year | terawatt-hours | Change |
|---|---|---|
| 1965 | 0.076 terawatt-hours | — |
| 1966 | 0.056 terawatt-hours | -26.4% |
| 1967 | 0.043 terawatt-hours | -23.1% |
| 1968 | 0.034 terawatt-hours | -21.0% |
| 1969 | 0.024 terawatt-hours | -29.5% |
| 1970 | 0.016 terawatt-hours | -33.2% |
| 1971 | 0.011 terawatt-hours | -31.3% |
| 1972 | 0.0079 terawatt-hours | -27.8% |
| 1973 | 0.005 terawatt-hours | -36.9% |
| 1974 | 0.004 terawatt-hours | -19.5% |
| 1975 | 0.0027 terawatt-hours | -32.9% |
| 1976 | 0.0028 terawatt-hours | +1.7% |
| 1977 | 0.0025 terawatt-hours | -8.9% |
| 1978 | 0.0021 terawatt-hours | -15.3% |
| 1979 | 0.1833 terawatt-hours | +8534.1% |
| 1980 | 0.2444 terawatt-hours | +33.3% |
| 1981 | 0.4155 terawatt-hours | +70.0% |
| 1982 | 0.3876 terawatt-hours | -6.7% |
| 1983 | 0.5539 terawatt-hours | +42.9% |
| 1984 | 0.7656 terawatt-hours | +38.2% |
| 1985 | 0.8185 terawatt-hours | +6.9% |
| 1986 | 0.922 terawatt-hours | +12.6% |
| 1987 | 0.7354 terawatt-hours | -20.2% |
| 1988 | 0.7415 terawatt-hours | +0.8% |
| 1989 | 0.7922 terawatt-hours | +6.8% |
| 1990 | 0.7557 terawatt-hours | -4.6% |
| 1991 | 0.7795 terawatt-hours | +3.2% |
| 1992 | 0.6141 terawatt-hours | -21.2% |
| 1993 | 0.6343 terawatt-hours | +3.3% |
| 1994 | 0.6267 terawatt-hours | -1.2% |
| 1995 | 0.7372 terawatt-hours | +17.6% |
| 1996 | 0.7302 terawatt-hours | -0.9% |
| 1997 | 0.7574 terawatt-hours | +3.7% |
| 1998 | 0.6799 terawatt-hours | -10.2% |
| 1999 | 0.7952 terawatt-hours | +17.0% |
| 2000 | 1.1 terawatt-hours | +38.3% |
| 2001 | 1.19 terawatt-hours | +8.5% |
| 2002 | 1.19 terawatt-hours | -0.4% |
| 2003 | 1.17 terawatt-hours | -1.8% |
| 2004 | 1.22 terawatt-hours | +4.8% |
| 2005 | 1.17 terawatt-hours | -4.5% |
| 2006 | 1.19 terawatt-hours | +2.4% |
| 2007 | 1.28 terawatt-hours | +7.0% |
| 2008 | 1.11 terawatt-hours | -13.0% |
| 2009 | 1.03 terawatt-hours | -7.5% |
| 2010 | 1.08 terawatt-hours | +5.4% |
| 2011 | 1.08 terawatt-hours | +0.0% |
| 2012 | 1.11 terawatt-hours | +2.3% |
| 2013 | 1.27 terawatt-hours | +15.0% |
| 2014 | 1.04 terawatt-hours | -18.1% |
| 2015 | 1.16 terawatt-hours | +10.6% |
| 2016 | 1.34 terawatt-hours | +16.3% |
| 2017 | 1.33 terawatt-hours | -0.8% |
| 2018 | 1.33 terawatt-hours | +0.0% |
| 2019 | 1.31 terawatt-hours | -2.1% |
| 2020 | 0.9612 terawatt-hours | -26.4% |
| 2021 | 1.36 terawatt-hours | +41.6% |
| 2022 | 1.35 terawatt-hours | -1.1% |
| 2023 | 0.9685 terawatt-hours | -28.1% |
| 2024 | 1.25 terawatt-hours | +29.3% |
| 2025 | 0.9184 terawatt-hours | -26.7% |
Iceland compared with similar countries
- Iceland's 0.9184 terawatt-hours is below the median for high income countries, which is 20.03 terawatt-hours, 5% of the median. (47 countries reporting)
- Iceland's 0.9184 terawatt-hours is below the median for Europe & Central Asia, which is 16.9 terawatt-hours, 5% of the median. (39 countries reporting)
Biggest year-on-year movements
Years where Primary energy use by source in Iceland changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 1979 | +8534.1% | 0.0021 terawatt-hours | 0.1833 terawatt-hours |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 0.0466 terawatt-hours | 0.024 terawatt-hours | 0.076 terawatt-hours | 5 |
| 1970s | 0.0237 terawatt-hours | 0.0021 terawatt-hours | 0.1833 terawatt-hours | 10 |
| 1980s | 0.6377 terawatt-hours | 0.2444 terawatt-hours | 0.922 terawatt-hours | 10 |
| 1990s | 0.711 terawatt-hours | 0.6141 terawatt-hours | 0.7952 terawatt-hours | 10 |
| 2000s | 1.16 terawatt-hours | 1.03 terawatt-hours | 1.28 terawatt-hours | 10 |
| 2010s | 1.21 terawatt-hours | 1.04 terawatt-hours | 1.34 terawatt-hours | 10 |
| 2020s | 1.13 terawatt-hours | 0.9184 terawatt-hours | 1.36 terawatt-hours | 6 |
Countries ranked near Iceland
- 64 Denmark 2.17 terawatt-hours compare
- 65 Saudi Arabia 1.74 terawatt-hours compare
- 66 Oman 1.37 terawatt-hours compare
- 68 Lithuania 0.8607 terawatt-hours compare
- 69 Turkmenistan 0.535 terawatt-hours compare
- 70 Switzerland 0.5228 terawatt-hours compare
More energy & mining data for Iceland
- Fossil fuel consumption by fuel, per unit of GDP 0 terawatt-hours per US$ of GDP (2024)
- Primary energy use, annual growth rate -4.9 % change on previous year (2025)
- Coal consumption, per capita 0 terawatt-hours per person (2025)
- Coal consumption, per unit of GDP 0 terawatt-hours per US$ of GDP (2025)
- Primary energy use, per unit of GDP 0 terawatt-hours per US$ of GDP (2025)
- Primary energy use, per capita 0.0002 terawatt-hours per person (2025)
- Coal production, per capita 0 terawatt-hours per person (2024)
- Coal production, per unit of GDP 0 terawatt-hours per US$ of GDP (2024)
- Fossil fuel consumption by fuel, per capita 0 terawatt-hours per person (2024)
- Fuel imports 9.0% (2025)
Frequently asked questions
- What is primary energy use by source in Iceland?
- Primary energy use by source in Iceland was 0.9184 terawatt-hours in 2025, according to Energy Institute – Statistical Review of World Energy (2026); Smil (2017) – with major processing by Our World in Data.
- What is the highest primary energy use by source recorded in Iceland?
- The highest recorded value was 1.36 terawatt-hours in 2021.
- What is the lowest primary energy use by source recorded in Iceland?
- The lowest recorded value was 0.0021 terawatt-hours in 1978.
- How does Iceland rank for primary energy use by source?
- Iceland ranks 67th out of 79 countries with data for 2025.
- Is primary energy use by source rising or falling in Iceland?
- Over the last ten years it is down 20.5%. The long-run trend across the full record is volatile.
- Where does this Iceland data come from?
- The figures come from Energy Institute – Statistical Review of World Energy (2026); Smil (2017) – with major processing by Our World in Data, published as part of Primary energy use by source. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 61 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Measured in terawatt-hours of total energy supply.